Answer:
The correct answer is D.
Explanation:
A confounding variable is a variable that you didn’t account for. It is when an experimenter cannot tell the difference between the effects of different factors on a variable. This method is used to influence the outcome of experimental design.
Rich black soil also referred to as “The gift of the nile” they also believed the river flooded from the tears of the goddess Iris as she cried over the death of her husband Osiris.
Answer:
20th century
Explanation:
The 20th century has seen a drastic change in the history. It is the most crucial and important century in the history of mankind.
It is also considered to be the most violent in the entire history. It had witness two world wars and a long stretched cold war. Many dictators such as Hitler, Pol Pot, Stalin, etc have invented and established Totalitarian state.
Through the 20th century alternative styles of arts have changed with the increasing speed.
Thus the answer is 20th century.
